Lesson 19 How do you use the Internet？教案

Lesson
19
How
do
you
use
the
Internet？
教案
1教学目标
一、知识目标
1.　Words
and
expressions
in
this
lesson.
2.　Target
language:
I
used
to
have
a
desktop
computer.
How
does
the
Internet
help
you
If
you
work
hard,
you’ll
complete
your
research.
.
3.掌握一般现在时和一般将来时两种时态的运用。
4.学习用if引导的条件状语从句:。
二、语言技能目标
(1)能用if
引导的条件状语从句来作出假设,用will
来谈论结果,如:If
you
do,
you’ll
be
late.
(2)能用“I
think
I’m
going
to
…”来表达作出的决定,如:I
think
I‘m
going
to
the
party
with
Karen
and
Ann.
语言知识目标
(1)正确运用if
引导的条件状语从句,如:If
you
do,
you
will
have
a　great
time.
(2)运用what对if引导的句子所产生的结果进行提问,如:What
will
you
do
if
you
have
a
computer
三、情感态度目标
(1)激发学生对科学的热爱和对英语学习的兴趣;
(2)认识网络对我们学习和生活的积极作用和消极影响,引导学生科学合理安全地上网。
2学情分析
八年级学生已经学过一般将来时态和一般现在时态,已了解了这两种时态的肯定句、否定句、一般疑问句等形式。首次接触if引导的条件状语从句,在接受上会有一些难度,这就要求教师在引入的时候要多从学生的角度思考。在口语运用中判断if条件句的主句、从句也许会存在一定的困难。在运用一般将来时和一般现在时态也许会产生混淆。
3重点难点
重点:(1)巩固和运用一般现在时和一般将来时。
(2)学习if
引导的条件状语从句。
难点:
条件状语从句中主句和从句的判断及时态的运用。
4教学过程
活动1【导入】Leading－in
Greet
the
class.　Introduce
the
new
unit.
T:
Today
we
will
begin
a
new
unit
with
its
title　“The
Internet
Connect
Us.
What
is
the
Internet.
Do
you
know
S:Yes,The
Internet
is
因特网
in
Chinese.
T:
Right.　What
does　“connect”　mean
S:连结。In
English
it
means　“put
together”.
T:　Quite
well!　But
how
does
the
Internet
connect
us
The
students
may
answer
the
question
in
different
ways.
The
teacher
show
the
class
a
desktop.　Then
the
students
may
realized
that
the
Internet
connects
people
by
connecting
their
computers.
活动2【活动】discussion
Look
at
the
pictures
in
lesson
19,Divide
the
class
into
four
groups
to
discuss
the
THINK
ABOUT
IT
questions
and
make
a
list.　of
①
What
can
you
do
on
a
computer
②How
do
you
use
the
Internet 　Then
ask
e
ach
group
to
give
a
report
about
their
discussion.
活动3【讲授】Learn　the　new　words　and　phrases
Show
the
class
the
vocabulary
list.
En
courage
the
students
to
learn
the
new
words
themselves.　check
to
see
if
they
have
any
difficulties
in
pronunciation.　Help
them
with
their
problems.　After
that,　explain
the
meaning
and
usage
of
the
key
words
and
phrases.
活动4【活动】Reading
Instruct
the
students
to
read
Lesson
19
and
do
Exercise
1
independently.　Check
and
discuss
the
answers
as
a
class.　Ask
them
to
underline
the
contents
they
don’t
understand.
活动5【导入】Presentation
Present
the
adverbial
clauses
with　“if”
①
If
you
have
some
money,
what
will
you
buy
(I
will
buy
a
computer)
②
:
What
will
you
do
if
you
have
a
computer
(I　will
send
e-mails
to
my
friends)
③
You
go
to
school
by
bike
because
your
home
is
very
far
from
the
school.
If
you
walk
to
school,
what
will
happen
(I
will
be
late
for
school)
③If
you
are
late
for
school
,
what
will
happen
(I
will
have
to
say
sorry
to
the
teacher.)
T:
if引导一个条件状语从句
当主句是一般将来时时,if引导的从句必须用现在时来表示将来可能发生的动作或存在的状态。
①
If
I
get
up
late,
I
will
be
late
for
school.
②
If
I
get
enough
exercise,
I
will
be
healthy.
从句(一般现在时态)
主句(一般将来时态)
③
I
will
be
tired
if
I
watch
too
much
TV.
④
I
will
be
happy
if
I
help
others.
主句(一般将来时态)
从句(一般现在时态
活动6【活动】Reading　and　discussion
Play
the
tape.　Students
listen
and
read
along.　After
that,　instruct
the
students
to
read
the
dialogue
in
groups
of
three.
Have
the
students
discuss
the
prepared
questions
in
small
groups
to
see
If
they
really
understand
the
contents
of
the
text.
As
the
students
to
do
Exercise
2
independently.　Check
the
answers
as
a
class.
活动7【活动】Task
~T:
Maybe
some
students
will
play
computer
games
after
class.
I
like
surfing
the
Internet.
If
you
surf
the
Internet,
what
will
happen
Please
work
in
groups
of
four
or
five.
Ss:
….
T:
I
think
you
will
learn
a
lot
by
surfing
the
Internet.
But
playing
computer
games
a
lot
is
bad
for
you.
You
should
study
hard
and
then
you
will
be
happy.
活动8【测试】Grammar　Focus
Ask
each
group
to
write
down
as
many
sentences
like
those
in
the
grammar
focus
as
they
can.
活动9【作业】Homework
Complete
Exercises
1
and
2
in
the
Workbook
Lesson
19.
Learn
the
new
words
and
phrases
by
heart.